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A response to a stimulus, event, or situation, often involving physical, emotional, or cognitive changes.
The patient's reaction to the medication was severe.
Her reaction to the news was one of shock and disbelief.
Can refer to chemical, biological, or psychological responses.
In chemistry, a process in which substances interact to form new substances.
The reaction between sodium and chlorine produces table salt.
The chemical reaction was exothermic, releasing heat.
Often involves reactants and products.
The meaning of 'reaction' varies by context—ensure you use it appropriately in scientific, emotional, or general discussions.
In science, 'reaction' refers to chemical processes; in everyday language, it describes responses to events or stimuli.
From Middle French 'réaction,' from Latin 'reactio,' meaning 'a going back,' from 'reagere' (to act against).
In everyday language, 'reaction' often refers to emotional or behavioral responses. In science, it describes chemical or physical processes.